Table 3.
Thermotolerant coliform testing in 126 households randomized to use chlorine, Moringa seeds, a closed container or follow prior practice over a 6-month period tested at baseline, 1 week, 6 weeks, and 4 months post-introduction of the intervention*
| Intervention | < 1 | > 1 to ≤ 10 | > 11 to ≤ 180 | > 180 | P value | Total no. samples | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| Baseline | ||||||||||
| Control | 0 | 0.00% | 1 | 3.20% | 1 | 3.20% | 29 | 93.50% | n/a | 31 |
| Chlorine | 0 | 0.00% | 0 | 0.00% | 1 | 3.20% | 30 | 96.80% | 0.601 | 31 |
| Moringa | 0 | 0.00% | 0 | 0.00% | 3 | 9.40% | 29 | 90.60% | 0.371 | 32 |
| Container | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% | 31 | 100.00% | 0.356 | 31 |
| Totals | 0 | 0.00% | 1 | 0.80% | 5 | 4.00% | 119 | 95.20% | 125 | |
| Sample at 1 week | ||||||||||
| Control | 1 | 3.30% | 0 | 0.00% | 0 | 0.00% | 29 | 96.70% | n/a | 30 |
| Chlorine | 10 | 32.30% | 0 | 0.00% | 2 | 6.50% | 19 | 61.30% | 0.003 | 31 |
| Moringa | 0 | 0.00% | 0 | 0.00% | 2 | 6.70% | 28 | 93.30% | 0.221 | 30 |
| Container | 1 | 3.20% | 0 | 0.00% | 1 | 3.20% | 29 | 93.50% | 0.611 | 31 |
| Totals | 12 | 9.80% | 0 | 0.00% | 5 | 4.10% | 105 | 86.10% | 122 | |
| Sample at 6 weeks | ||||||||||
| Control | 0 | 0.00% | 1 | 3.30% | 5 | 16.70% | 24 | 80.00% | n/a | 30 |
| Chlorine | 6 | 21.40% | 1 | 3.60% | 5 | 17.90% | 16 | 57.10% | 0.057 | 28 |
| Moringa | 0 | 0.00% | 0 | 0.00% | 5 | 17.20% | 24 | 82.80% | 0.612 | 29 |
| Container | 1 | 3.20% | 2 | 6.50% | 4 | 12.90% | 24 | 77.40% | 0.699 | 31 |
| Totals | 7 | 5.90% | 4 | 3.40% | 19 | 16.10% | 88 | 74.60% | 118 | |
| Sample at 4 months | ||||||||||
| Control | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% | 30 | 100.00% | n/a | 30 |
| Chlorine | 2 | 7.10% | 1 | 3.60% | 0 | 0.00% | 25 | 89.30% | 0.184 | 28 |
| Moringa | 0 | 0.00% | 0 | 0.00% | 1 | 3.30% | 29 | 96.70% | 0.313 | 30 |
| Container | 1 | 3.20% | 0 | 0.00% | 2 | 6.50% | 28 | 90.30% | 0.217 | 31 |
| Totals | 3 | 2.50% | 1 | 0.00% | 4 | 3.40% | 112 | 94.10% | 119 | |
*
At baseline, the samples were diluted 1 in 10, post-intervention they were tested undiluted. P values are for each intervention in comparison to control. n/a = not available.